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Before-Catalyst Oxygen Sensor (Early-1.8T)
Before-Catalyst Oxygen Sensor (Early-1.8T)
Before-Catalyst Oxygen Sensor (Early-1.8T)
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Before-Catalyst Oxygen Sensor (Early-1.8T)

Marsoni M251S
Sale price$134.99
Pay 4 payments of $33.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Before-Catalyst Oxygen Sensor (Early-1.8T)Bosch early 1. 8T pre cat oxygen sensor with OE connector. Fits: '98 '99 A4, '98 '99 Passat
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Your Before-Catalyst Oxygen Sensor (Early-1.8T) orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1394 reviews
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Product Reviews
M
Verified Purchase
Martin Maldonado
Los Angeles, US
★★★★★ 5
A-
Great part, had to change oring the one that comes with is way to big, but overall great quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
J
Verified Purchase
Jason m Barger
Belleville, US
★★★★★ 5
BOSCH Oil filter
BOSCH Is the best for all car products Fit like it should have and works great. Always use BOSCH in my car
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2024
A
Verified Purchase
Adam E. Mis
Alexandria, US
★★★★★ 5
Fit
Perfect fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 1, 2024
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Good
Good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2025
C
Verified Purchase
Customer
Houston, US
★★★★★ 4
Does not work on Porsche 2015 S-E Hybrid
DOESNT WORK on Porsche 2015 S E-Hybrid
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026

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